Yin-Yang Ecstasy Demon Cult

Seceded from the Yin-Yang Heavenly Pavillion due to their different belief.

Due to the debauched actions of some members the Heavenly Pavillion became also known as Yin-Yang Pleasure Sect, but the extremists of the Pleasure Sect thought they were still too restrained by the main sect and decided to split from them and develop into a proper demonic cult.
Just like the main Yin-Yang sects, the Ecstasy Demon Cult is focused on sexual practicies... too focused even, disregarding time and place and consent of their partner... maybe not all members are that extreme, but it is a fact that each and everyone of them gives utmost priority to their own pleasure and cultivation.

Initially made up only of humans, some sexually attuned demon eventually joined in and contributed to develop the sexual techniques of the cult which led to much much improvement on both strength and efficency, though being influenced by the demonic nature some side-effects began to appear... well, the kind of side-effects those cultists wouldn't mind at all.